#423CD3#423CD3

#423CD3 is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 47.1% C 0.222 H 275.4°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#423CD3
RGB	rgb(66, 60, 211)
HSL	hsl(242, 63%, 53%)
HSV	hsv(242, 72%, 83%)
CMYK	cmyk(68.7%, 71.6%, 0%, 17.3%)
CIE-LAB	lab(36.16, 49.03, -76.33)
CIE-LCH	lch(36.16, 90.71, 302.71°)
OKLab	oklab(47.05% 0.021 -0.2206)
OKLCH	oklch(47.05% 0.222 275.4)
XYZ	xyz(15.6166, 9.0917, 62.5473)
Luminance	0.0909 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423CD3 #CDD33C

analogous

#3C81D3 #423CD3 #8D3CD3

triadic

#423CD3 #D3423C #3CD342

tetradic

#423CD3 #D33C81 #CDD33C #3CD38D

square

#423CD3 #D33C81 #CDD33C #3CD38D

split-complementary

#423CD3 #D38D3C #81D33C

monochromatic

#1F1B79 #2C27AB #423CD3 #726EDE #A3A0EA

Accessibility & contrast

On white

7.45

#423CD3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#423CD3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CD3

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CD3	#FFFFFF	#000000	##FFFFFF
##423CD3	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD7

Deuteranopia (green-blind)

#004ED0

Tritanopia (blue-blind)

#006684

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #423cd3;
/* rgb */ color: rgb(66, 60, 211);
/* oklch */ color: oklch(47.1% 0.222 275.4);

Tailwind

colors: {
  custom: {
    50: '#8a73e2',
    500: '#423cd3',
    950: '#000000',
  },
}

SCSS

$custom: #423cd3;
$custom-light: #8a73e2;
$custom-dark: #000000;

JSON

{
  "hex": "#423cd3",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 211
  },
  "hsl": {
    "h": 242.384,
    "s": 63.18,
    "l": 53.137
  },
  "oklch": {
    "l": 0.47053,
    "c": 0.2216,
    "h": 275.4
  },
  "luminance": 0.09093
}

Semantic roles & 50–950 ramp

primary

#423CD3

secondary

#D3D695

accent

#E642E0

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #423CD3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →